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-rw-r--r--src/common/address_space.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/common/address_space.inc b/src/common/address_space.inc
index 2195dabd5..c97dc8651 100644
--- a/src/common/address_space.inc
+++ b/src/common/address_space.inc
@@ -72,7 +72,7 @@ MAP_MEMBER(void)::MapLocked(VaType virt, PaType phys, VaType size, ExtraBlockInf
}
}()};
- if (block_end_predecessor->virt >= virt) {
+ if (block_end_predecessor != blocks.begin() && block_end_predecessor->virt >= virt) {
// If this block's start would be overlapped by the map then reuse it as a tail
// block
block_end_predecessor->virt = virt_end;